[Weezy]

Well the good news is I got a good price on a rear Renthal w/43T. The bad news it's a 520. I'm getting a new chain (520), but will my recently purchased front sprocket work(it's got to be a 525)? Also, does +3 in the back require a longer chain than stock?

 

[swjohnsey]

Yeah, +3 requires a longer chain but they usually sell you a 120 link chain anyway. The 525 front sprocket won't work. It has to be a 520 as well.

I am gathering up the kit to replace my chain. I am going to go the other way. I am using a Renthal 15T in front and a Sprocket Specialist 39T in back plus a DID 520 x-ring chain.

 

[Weezy]

Would a 110 link chain work on a 15-43 setup? It would be like taking one link out of the stock setup, wouldn't it?

 

[swjohnsey]

Stock should be 108 so that would be a litte longer. Sounds like it should work.

 

[zx6rfreak]

Just got new chain and sprockets 6 days ago(14f and 42r 520 rk gold chain) didnt have to cut any links or anything.